Successful treatment of extragenital lichen sclerosus with narrow-band UVB phototherapy

• Author(s): Sun, Lanyu ; De Sousa, Diogo ; De Vasconcelos, Pedro ; Fernandes, Sonia ; Filipe, Paulo
• Date: 2025
• Persistent ID: http://hdl.handle.net/10400.5/101073
• Origin: Repositório da Universidade de Lisboa
• Subject(s): Narrow band UVB radiation; Phototherapy; Extragenital lichen sclerosus; Dermatology
• Document Type: Journal article
• Language: English
• Contributor(s): Repositório Científico de Acesso Aberto da ULisboa

Description

Lichen sclerosus (LS) is a chronic inflammatory skin condition characterized by progressive epidermal atrophy and hypopigmentation, usually affecting the anogenital area. Patients may also present with extragenital lesions,though only 6% of LS cases are isolated to extragenital skin. Extragenital lichen sclerosus (EGLS) can be localized or widespread. Given the rare nature of extragenital-only forms of LS, there are limited reports on this entity. Here, we report a patient with widespread EGLS treated successfully with narrowband UV-B (NB-UVB) phototherapy.